Machine for printing in colors



N0. 6I3,488. Patented Nov. I, I898. B. F. B'IJWER & W. H. KENNELL. MACHINE FOR PRINTING IN COLORS.

(Application filed Oct. 25, 1897.) (No Model.) 2 Sheat's--Shaet I.'

THE NORRIS wz'rzns co. PHOTO-LITHD, WASHINGTG UNITED STATES BURROUGHS F. BOWER AND WILLIAM H. KENNELL, OF CLEVELAND, OHIO.-

PATENT Gwen.

MACHINE FOR PRINTING IN COLORS.

SPECIFICATION forming part of Letters Patent No. 613,488, dated November 1, 1898. Application filed October 25, 1897. Serial No. 656,329. (No model.)

, To all whom it may concern.-

Be it known that we, BURROUGHS F. BoWER .and WILLIAM H. KENNELL, citizens of the United States, residing at Cleveland, in the .county of Guyahoga and State of Ohio, have invented a certain new and useful Improvement in Mechanism for Printing in Two Colors, of which the following is afull, clear, and exact description, reference being bad to the accompanying drawings.

We designate our invention mechanism for printing in two colors, though if one of the colors comes over the other three colors will be produced.

The objectof the invention is to provide means whereby a duplex web-printingpress or a pair of web-presses adapted to be operated simultaneously to print two sheets of paper may be changed into two presses, one.

acting after the other, the paper printed by the first press being caused to register properly on the second press. The result is that if ink of a different color is supplied to the different fountains the press may print in a plurality of colors. If, for instance, black ink were used on the first press and red ink supplied to the press making the second impression, the place where the first impression was not overlapped by the second would be black, the place where the second impressioncame on unprinted paper would be red, and the place where the second impression overlapped the first would be brown.

Our invention is particularly adapted for use in connection with a duplex web-perfecting printing-press; and it consists in the arran gement and combination of parts whereby an adjustable roller is used for converting a duplex perfecting-press into a color-press, as will be more fully described hereinafter.

The drawings clearly illustrate our invention.

Figure 1 is a side elevation of a portion of a web-perfecting printing-press provided with our adjustable roller. Fig. 2 is a horizontal section on the line 2 .2 thereof, looking upward. Fig. 3 is a perspective View of one end of the adjustable roller and its attached parts, together with a portion of the frame. Fig. 4 is a diagrammatic view showing the various rollers of a duplex web-perfecting press rendered convertible into a color-press .by our invention.

Similar letters of reference designate similar parts in each figurei Referring to the parts by letters, A represents the frame of a duplex web-perfecting printing-press.

B B B B represent four printing-rollers, C G C C the cooperative blanket-rollers, and D D D D the corresponding ink-rollers. The ink on the ink-rollers is received from suitable fountains, distributed by the composition=rollers E, and transferred by the transfer-rollers F to the printin grollers,which carry the plates.

G and G represent the paper-rolls, from which the paper travels over suitable guiderollers H between the printing-rollers and the cooperating blanket-rollers. The paper passing from the rolls G and G is designated J and J ,respeotively.

The mechanism thus far described is that of an ordinary web-perfecting duplex printing-press and is set out specifically simply as being illustrative. With such presses heretofore the strip of paper J has traveled between the rollers 13 and 0, receiving an impression on one side, and then between C and B receivin an im )ression on the other side passing out from the rollers, as shown in the dotted line, while the strip J, brought to the rollers B and C from the roll G, as shown in dotted lines, passes between those rollers and between the rollers B and 0 receiving impressions on each side, and passes out from the rollers, after which the two strips are folded together and cut ofi.

In order to accomplish our object of being able to use the two presses on the same strip of paper instead of on two strips, we provide the adjustable roller M between the two presses, and, abandoning the strip of paper J, we cause the strip J to travel as described until after it has passed between the rollers G and B and received its two impressions and then to travel farther around the roller 0 and over the roller M and then between the rollers B and (J and follow the course which the strip J took from that point. By adjusting the roller M we can cause the paper to properly register between the rollers B3 and C and B and O, and thus add a new impression to the already-printed sheet. If now we supply ink of a different color to one of the ink-rollers, we will obtain two colors on the finished sheet where the two impressions do not overlap and three colors where they do. It is immaterial which rollers have one color and which have another, so long as one of the rollers on one press has differentcolored ink from one of those on the other. To print each side of the sheet in two colors requires two of the rollers to have one colored ink and two of the rollers to have the other color; but it is immaterial whether the two rollers of the same color are both on the same press or are one on one press and the other on the other. For example, to print a sheet red and black on each side the rollers D and D might receive black ink and the rollers D- and D red ink, or the rollers D and D might receive black ink and the rollers D and D red ink.

The adjustability of the roller M is conferred by the following mechanism: The roller is journaled in a pair of arms N, which arms are rigidly secured to a rod P,- extending across the press and journaled to the frame thereof. A pin n or other suitable means securely locks the arms N to the rod P. On one end of the rod P is the lever Q, adjustably locked to the rod by the set-screws R R. A set-screw S, locked by a jam-nut 8', passes through an inwardly-extending li-p g on the lever Q and bears against a web a on the frame. This set-screw provides means for nicely adjusting the rollerM. In making the adjustment of that roller the set-screws R R are loosened and the roller moved by hand as nearly into the desired position as is conveniently possible, and then these set-screws are tightened, locking the rod and lever Q together. The set-screw S is then turned until the roller is brought accurately into the position required to give the paper absolute registration on the second press, whereupon the jam-nut s is turned down against the lever Q, locking the set-screw S in place. A

' set-screw T, screwing into the frame and having its inner end bearing against the rod P, (which screw was loosened to adjust that rod,) is then turned tightly against the rod, thereby preventing it from turning and preventing displacement of the roller M.

Having described ourinvention, weclaim-- In combination with the two presses of a duplex Web-printing press, the roller M journaled in the arms N, which arms are rigidly secured to a rod P suitably supported, a lever Q adapted to lock said rod P, one or more set-screws R adjustably securing said lever to said rod, the set-screw S adapted to nicely adjust said lever Q, and means for locking the roller M in the proper position after adjustment, substantially as described.

In testimony whereof we affix our signa tures in presence of two Witnesses.

BURROUGHS F. BOWER. WILLIAM H. KENNELL. 

